Trichoderma sp.strain inducing plant disease resistance and its influence on soil enzyme activity after used

This study was conducted to investigate Trichoderma sp.strain inducing plant disease resistance and its influence on soil enzyme activity after it was used.We chose cucumber(zhongnong 5)as material and carried on the field plot experiment.The plant enzymes activities that were close interrelated with inducing plant disease resistance and soil enzymes activitives were measured.The result showed that the plant disease resistance was induced at the initial stages of cucumber growth after using Trichoderma sp.strain and the plant resistance disease ability was improved.effect of solid agent.The soil urease activity of treatment was higher than that of CK at seedling stage,fruit stage and final stage.But the soil urease activity of treatment was lower than that of CK at flowering stage.The soil acidic phosphatase activity of treatment was lower than that of CK at all cucumber growth stages.The soil catalase activity of treatment was higher than that of CK at seedling stage and all other cucumber growth stages.